Cold plate heat sink



FIG. 1 is a front, top, and right side perspective view of a cold plate heat sink showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is right side elevational view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a cold plate heat sink, as shown. 